Solve each rational inequality. Give the solution set in interval notation. 1 /(x+ 2) > 1 /(x -3)
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- 0. Review of Algebra4h 18m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations1h 43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 5m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 22m
- 10. Combinatorics & Probability1h 45m
- Appendix 1. Review of Real Numbers2h 24m
- Appendix 2. Linear Equations and Inequalities3h 42m
- OLD 9. Sequences, Induction, and Probability Coming soon
- 1. - OLD - Fundamental Concepts of Algebra Coming soon
- 2. - OLD - Equations and Inequalities Coming soon
- OLD 4. Rational Functions Coming soon
- OLD 2. Functions & Graphs Coming soon
- OLD 6. Exponential and Logarithmic Functions Coming soon
- OLD 7. Systems of Equations and Inequalities Coming soon
- OLD 8. Matrices and Determinants Coming soon
- OLD 9. Conic Sections Coming soon
1. Equations & Inequalities
Linear Inequalities
Problem 68
Textbook Question
Solve each rational inequality. Give the solution set in interval notation.
Verified step by step guidance1
Start with the given inequality: \(\frac{5}{2 - x} > \frac{3}{3 - x}\).
Identify the domain restrictions by setting the denominators not equal to zero: \(2 - x \neq 0\) and \(3 - x \neq 0\), which means \(x \neq 2\) and \(x \neq 3\).
Bring all terms to one side to form a single rational expression: \(\frac{5}{2 - x} - \frac{3}{3 - x} > 0\).
Find a common denominator, which is \((2 - x)(3 - x)\), and combine the fractions: \(\frac{5(3 - x) - 3(2 - x)}{(2 - x)(3 - x)} > 0\).
Simplify the numerator and analyze the sign of the rational expression by considering the critical points from the numerator and denominator to determine the solution intervals.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Rational Inequalities
Rational inequalities involve expressions where variables appear in the denominator. Solving them requires finding values of the variable that make the inequality true, while ensuring the denominator is never zero to avoid undefined expressions.
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Nonlinear Inequalities
Finding a Common Denominator and Cross-Multiplication
To compare two rational expressions, you can cross-multiply when denominators are positive or find a common denominator to combine terms. Care must be taken to consider the sign of denominators, as multiplying or dividing by negative values reverses inequality signs.
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Finding Zeros & Their Multiplicity
Domain Restrictions and Interval Notation
The domain excludes values that make any denominator zero. After solving the inequality, solutions must be expressed in interval notation, clearly indicating which values satisfy the inequality and respecting domain restrictions.
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Interval Notation
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